Might not fit your usecase, but you're really better off doing something like this:
echo "\
/proc
/dev
lost+found/
/sys
/run
/swapfile" > /tmp/exc
tar -zcvf - --exclude-from=/tmp/exc / | rclone rcat remote:/backup/data_$(date "+%Y-%m-%d_%H:%M:%S").tar.gz -v
Use a tool that is meant for creating what you're wanting and stream it to google drive. Would be a LOT faster too as its one big file rather than MANY tiny ones. You can adjust the include/exclude to your liking as it is just 'tar'. It will also capture then permissions and links depending on the tar options.